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中文摘要：
基于一次扣拱暗挖逆作法在北京地铁14号线大望路站的应用,针对一次扣拱暗挖逆作法应用中的难点,对工法特点、主要施工步序及注意事项进行简要介绍,重点分析导洞施工步序调整对地表沉降及导洞位移的影响规律。实践研究表明,一次扣拱暗挖逆作法可降低施工风险,充分利用开挖空间,保证了车站的施工质量。
英文摘要：
Based on the application of one-off supporting arch reverse construction method on the Dawanglu station in Beijing,the main construction features,construction steps and matters attention are introduced on the difficulties in practical application,especially the influence of the adjusted construction steps on the surface settlement and tunnel displacement are analyzed. The practice shows that the method can reduce the construction risk,make full use of the excavation space and ensure the construction quality of the station.
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